The river crabs were another piece that I really liked. Here is more information on the work from the sign:
"He Xie: 2011, Porcelain
In recent years, Chinese government propaganda has used the term hexie or "harmonious" to describe an ideal contemporary Chinese society. The undertones of the word, however, imply absolute conformity, and serve as an excuse for violence in "stability maintenance". Internet activists quickly latched on to the term as a threat to plurality and freedom of speech. The river crab is a homophonic pun on the word he xie, a fitting image for a society where criticism must be indirect and language takes on highly encoded meanings to evade censorship.
In 2010, in order to protest the Shanghai government in unreasonably demolishing his newly-built studio, Ai Weiwei held a river crab feast for online followers who went to the site to voice their support. He was illegally placed under house arrest for the first time."